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  • Springer  (24)
  • Jena  (2)
  • Jena : Thüringer Landesanstalt für Landwirtschaft  (1)
  • 2000-2004  (17)
  • 1965-1969  (10)
Document type
Language
Years
Year
  • 1
    Type of Medium: Online Resource
    Pages: Online-Ressource (36 p. = 835 KB) , graphs
    Edition: [Elektronische Ressource]
    Series Statement: Entwicklung einer Technologie zum Färben von Cellulose- und Proteinfaserstoffen mit einheimischen Pflanzenfarben : Abschlussbericht Teilvorhaben 3
    Language: German
    Note: Contract BMBF 97NR146 - Contract BMBF 22014697. - Differences between the printed and electronic version of the document are possible. - nIndex p. 35 - 36 , Also available as printed version , Systemvoraussetzungen: Acrobat Reader.
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  • 2
    Keywords: Forschungsbericht
    Type of Medium: Online Resource
    Pages: 60 p. = 3,64 Mb, text and images
    Edition: [Elektronische Ressource]
    Language: German
    Note: Differences between the printed and electronic version of the document are possible , Contract BMBF 96NR-172-F , Also available as printed version , Systemvoraussetzungen: Acrobat Reader.
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  • 3
    Keywords: Forschungsbericht ; Druckfarbe ; Färberpflanzen
    Type of Medium: Online Resource
    Pages: Online-Ressource (PDF-Datei: 39 S., 695 KB) , Ill., graph. Darst.
    Edition: [Online-Ausg.]
    Language: German
    Note: Förderkennzeichen BMVEL 00NR185/22018500. - Verbund-Nr. 01021534 , Unterschiede zwischen dem gedruckten Dokument und der elektronische Ressource können nicht ausgeschlossen werden , Auch als gedr. Ausg. erschienen , Systemvoraussetzungen: Acrobat reader.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 24 (1968), S. 340-341 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Arginine has been converted into a suitable pyrimidine derivative to permit its qualitative analysis in the presence of other amino acids by means of mass spectrometric and gas-chromatographic techniques.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 61 (1968), S. 148-152 
    ISSN: 1437-1596
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Summary An A3 blood sample did not react to extracts containing anti-Ahel. These extracts were produced from the protein gland of Helix pomatia. Other samples of the special type A 3 w showed a stronger reaction, however. The different reactions are to be taken from the table.
    Notes: Zusammenfassung A3-Blutkörperchen reagieren mit Extrakten von Drüsen aus Helix pomatia entweder nicht oder nur sehr schwach, A2-Zellen reagieren oft stärker mit Anti-Ahel als A1-Zellen. Bei allen Versuchen zeigten sich geringe Unterschiede gegenüber dem Anti-Ahel aus Helix hortensis. Abschließend werden grundsätzliche Betrachtungen zur Immunchemie der A-Untergruppen angestellt.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European food research and technology 211 (2000), S. 346-348 
    ISSN: 1438-2385
    Keywords: Key wordsCraterellus ; Gomphidius ; Higher fungi ; Hydnum ; Hygrophorus, Laccaria ; Trypsin inhibitors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Laccaria and Hygrophorus species, Craterellus cornucopioides, Gomphidius glutinosus, Macrolepiota rhacodes and Hydnum repandum. The inhibiting activities found were higher than those of cereals but lower than those of some fabaceous plants.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 225 (1969), S. 336-352 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The half lives of the 5/2 5/2−[523] level at 25.7 keV in 66 161 Dy and the 5/2 5/2+[642] level in 68 163 Er, found in this work to lie at 69.2 keV, have been determined by the delayed coincidence method to be T1/2=27.8± 1.5 nsec, and T1/2=8.8± 0.5 nsec, respectively. The following hindrance factors relative to the single particle Weisskopf estimate (F W and the Nilsson estimate (FN were obtained: 66 161 Dy 5/2 5/2−[523] → 5/2 5/2+[642]:FW=(6.6± 1.3) × 103, FN=0.48± 0.10 68 163 Er 5/2 5/2+[642] → 5/2 5/2−[523]:FW=(2.4± 0.5)× 104, FN=1.8 ± 0.4 A systematic difference between transitions in odd proton nuclei and odd neutron nuclei was found: E1, ΔK=0 transitions in odd neutron nuclei have hindrance factors FN from 2.9 to 0.16, this means, these transitions are in agreement with the predictions of the Nilsson model within a factor of 10. For transitions in odd proton nuclei one has hindrance factors FN from 75 to 9.9 × 10−4. It is shown that a small difference between the deformation of the initial and the final state changes the transition probability of both, proton and neutron transitions, considerably.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 21 (1965), S. 374-375 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Bei thermischer oder solvolytischer Decarbonylierung eines neuen Alkaloids ausMelodinus scandens Forst. entsteht eine Verbindung II, die ihrerseits in die Derivate III–VI umgewandelt werden kann. Auf Grund eingehender NMR- und MS-Untersuchungen können für die Verbindungen II–VII die angegebenen Strukturen vorgeschlagen werden. Alkaloide mit dem Skelett der Verbindung II entstehen biosynthetisch wahrscheinlich aus Alkaloiden des Aspidospermin-Typs durch Oxidation an C-2 und nachfolgende Umlagerung.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Anatomy and embryology 128 (1969), S. 141-162 
    ISSN: 1432-0568
    Keywords: Salivary glands ; Succinic dehydrogenase ; Alkaline phosphatase ; Gl. lacrimalis (extraorbitalis) ; Salivary reabsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei der Ratte wurden die Ausführungsgangsysteme der drei großen Speicheldrüsen und der Gl. lacrimalis extraorbitalis hinsichtlich des Gehaltes ihrer Epithelien an Succinodehydrogenase sowie in bezug auf die Art und Dichte ihrer Kapillarisierung untersucht. Die Drüsengefäße (Capillaren) stellten wir durch die Reaktion der Endothelzellen auf alkalische Phosphatase dar. Bei den Speichelgangsystemen fand sich jeweils der höchste Gehalt an Succinodehydrogenase in den Epithelien der intralobulären Ganganteile. Generell nahm mit zunehmender Ganggröße die Reaktionsstärke ab. Das Gangsystem der Gl. retrolingualis fiel durch einen besonders hohen Enzymgehalt auf. Bei der Gl. lacrimalis extraorbialis war — beschränkt auf die extraglandulären Ganganteile — nur eine schwach positive bis negative Reaktion zu erzielen. Bei den Speicheldrüsen zeigten sich an allen Anteilen der Gangsysteme Capillarnetze; bei der Tränendrüse waren solche nur an den außerhalb des Drüsenkörpers liegenden Gangabschnitten zu beobachten. So wie der Gehalt an Succinodehydrogenase nahm auch die Kapillarisationsdichte an den Ausführungsgangsystemen der untersuchten Speicheldrüsen im Verlauf der Gänge nach peripher ab. Die unterschiedliche Dichte der Capillarnetze an den Gangsystemen der drei großen Rattenspeicheldrüsen läßt auf unterschiedlich starke Austauschvorgänge schließen. Die auf Mikropunktionsuntersuchungen beruhende Annahme, daß der Ductus submandibularis noch zu einer Veränderung des ihn passierenden Sekretes beiträgt, wird morphologisch durch den Nachweis enggestellter Capillarnetze und histochemisch durch eine stark positive Reaktion der Gangepithelien auf Succinodehydrogenase gestützt. Für den Ductus retrolingualis gelten ähnliche Überlegungen, obwohl noch keine Mikropunktionsuntersuchungen vorliegen. Beim Ductus parotideus dagegen bestätigen der weitmaschige Capillarplexus und der geringe Gehalt der Gangepithelien an Succinodehydrogenase die Auffassung früherer Untersucher, daß der Parotisgang (und seine extraglandulären Zuflüsse) keinen wesentlichen Einfluß mehr auf die Zusammensetzung des Endspeichels ausübt.
    Notes: Summary The duct systems of the great salivary glands and the gl. lacrimalis extraorbitalis of the rat have been examined with respect to their activity of succinic dehydrogenase, as well as with respect to the appearance and density of their capillarisation. The blood vessels (capillaries) have been demonstrated by means of the reaction of their endothelium to alkaline phosphatase. The highest activity of succinic dehydrogenase has been found in the epithelial cells of the intralobular ducts (of the salivary glands). Generally decreasing activity was observed in the ducts with enlargening diameter. In the ducts of the gl. retrolingualis, the enzyme reaction is particularly strong. The duct system of the gl. lacrimalis extraorbitalis has a weak positive to negative reaction in its outer-glandular part. On all parts of the salivary duct systems there is a capillary network. In the lacrimal gland, however only the outerglandular part of the duct system is characterized by the capillary network. The capillary network of the salivary duct systems are seen to become wider as the diameter of the ducts becomes greater. The different density of the networks surrounding the salivary duct systems probably indicate exchange processes of varying intensity. The theory that the ductus submandibularis may alter the composition of the passing saliva is supported by the finding of a dense capillary network and high activity of succinic dehydrogenase in the ducts. The same features are found in the ductus retrolingualis, although here the theory of alteration of saliva by the ducts is not yet proved by micropuncture experiments. The assumption of preceding investiations that the function of the ductus parotideus does almost completely consist in transporting the saliva, is supported by a wide-spread capillary network and by a minute activity of succinic dehydrogenase of the duct cells.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0568
    Keywords: Key words Blood vessel walls ; Intima thickening ; Lamina elastica interna splitting ; Morphology ; Elastin quantification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Although pre-eclampsia (PE) is often associated with fetal hypoxia, hypertension and/or disturbed function of the fetal circulation, the effect of these altered hemodynamic parameters on the structure and composition of umbilical vessels has not been systematically investigated before. Therefore, this study focuses on PE-associated changes of the elastic fibre system in umbilical cord vessels investigated by light and electron microscopy, immunocytochemistry and biochemistry. In umbilical cord veins, no changes in thickness of the vessel wall or of any sublayer were observed. However, the internal elastic lamina of the veins was split in 80% of the PE-group in contrast to 20% in uncomplicated pregnancies. This effect was significant (α 〈0.01) from 36 weeks of gestation onwards. In umbilical cord arteries, the entire arterial vessel wall was found to be 15% thicker in PE than in uncomplicated pregnancies. The enlargement was caused by an increase of both the tunica intima and tunica media. The thickening of the tunica intima was attributed to a migration of smooth muscle cells towards the endothelium, accompanied by a splitting of the internal elastic lamina. Compared to uncomplicated pregnancies, smooth muscle cells of arteries and veins in PE showed a metabolic activation demonstrated by highly dilated endoplasmic reticulum. A semiquantitative score method as well as a quantitative dot blot assay indicated a PE-associated reduction of elastin expression in the arterial vessel walls. In summary, PE obviously induces a decrease of the elastin content accompanied by a thickening of the vessel wall in umbilical cord arteries. This remodeling of the elastic fibre system, together with an increased migration of smooth muscle cells, might represent part of the functional adaptation system of the umbilical cord arteries on the altered hemodynamic conditions in PE.
    Type of Medium: Electronic Resource
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